XSLT Error

    Empty filename at /home/ubuntu/perl5/perlbrew/perls/perl-5.18.0/lib/site_perl/5.18.0/Chameleon5/Template/XSLT.pm line 575.
    

Response XML

<?xml version="1.0"?>
<response>
  <form method="post" uri="" encoding="&#x2713;" uuid="CB612876-183A-11EA-A948-76CC0ABD1946" key="login">
    <field value="" name="username" key="username" attrs="" display="Username" id="uuid-CB617EA2-183A-11EA-9444-76CC0ABD1946" widget="text"/>
    <field attrs="" display="Password" id="uuid-CB61BA2A-183A-11EA-9444-76CC0ABD1946" widget="password" key="password" name="password"/>
    <field widget="submit" display="Login" id="uuid-CB61FBA2-183A-11EA-9444-76CC0ABD1946" attrs="" key="submit" name="submit" value=""/>
  </form>
</response>